Performed home care on two systems. Basement system has no in-line safety or wet switch. Checked all electrical and amperage’s. Cleared drain line and the condensate pump. Cycled condensate pump and treated line. Changed 14 x 25 x 1 filter. Check, capacitor, contactor, and pressures. Checked both heat and cool. Main floor system. Checked all electrical and amperage. Has in-line safety and SS2 float switch. Thermostat not calling for heat. Jumped the wires at thermostat heater came on. Nest thermostat bad. Changed customer provided filter 20 x 25 x 4. Check contactor and pressures. Checked both heat and cool.